3 years ago

Help please. Thank you

Mathematics

1 answer:

hram777 [196]3 years ago

3 0

Answer:

138

Step-by-step explanation:

Use the symbols A for number of marbles Abdul has

D for number Durai has and M for number Mutha has, then

D + A = 328 , M + D = 176

Since A = 5M then D + 5M = 328

We now have 2 equations in D and M which we can solve

D + 5M = 328 → (1)

D + M = 176 → (2)

Subtract (2) from (1) term by term

(D - D ) + (5M - M ) = (328 - 176 )

4M = 152 ( divide both sides by 4 )

M = 38

substitute M = 38 into D + M = 176

D + 38 = 176 ( subtract 38 from both sides )

D = 138

Hence Durai has 138 marbles

You might be interested in

Write the inequality for the linear inequality graphed below. You can

romanna [79]

Answer:

Step-by-step explanation:

5 0

2 years ago

PLEASE HELP, I THINK IT’S EITHER B OR C.

HACTEHA [7]

its c! there isnt a decrease between x = -1 and x = 0, as when x = -1 y = 0 and when x = 0 y = 2, showing an increase of +2.

7 0

2 years ago

Cyrus is inviting 11 friends over for pizza. He would like to have enough pizza so each friend can have 1/4 of a pizza. About ho

ExtremeBDS [4]

Answer:

Cyrus needs to order 3 full pizzas to feed his 11 friends .

Step-by-step explanation:

The number of friends invited = 11

Share of pizza for each friend = 1/4 pizza

Now, as 1 friend eats 1/4 of a pizza.

⇒ 11 friends eat = $11 \times \frac{1}{4} = 2.75$

So, 11 friends can eat 2 .75 pizza.

Since pizza come as a whole number.

And 2. 75 is nearly equal to 3.00

Hence, Cyrus needs to order 3 full pizzas to feed his 11 friends .

6 0

3 years ago

What is the midpoint of the line segment with endpoints (-5.5, -6.1) and (-0.5, 9.1)?

Margarita [4]

Answer:

(-5/2, 3/2)

Step-by-step explanation:

[(-5.5+.5)/2, (9.1-6.1)/2)} = (-5/2, 3/2)

3 0

3 years ago

Make a subject of r = square root of a / 3

hodyreva [135]

Multiply both sides by 3 to get:

3r = sqrt(A)

Square both sides:

9r^2 = A

4 0

3 years ago